Island



J. H. POTTER, Jr. SPINNING MACHINE.

Patented Sept. 9, 1890.

.Pay/r. Z

WJ'TNEESEE i VUNITED STATES PATENT OFFICE.

JosEPn H; POTTER, JR., oF /FALL RIVER, MAssAoHUsETTs, AssIGNoR OFl oru-mt To EZRA DIXON, oF BRIsToL, RHoDE ISLAND.

SPINNING- MACHINE.

SPEGIFICATION forming part of Letters Patent No. 186,317, dated September 9, 1890.

Application filed March 18, 1890.

Serial No. 344,376. (No model.)

To all whom it may concern:

Be it known that I, JosEPH H. POTTER, J r.,\ of Fall River, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Spinning-Machines; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

Thisinvention has reference to an improvement in the mechanism for reciprocating the roving-rod and guide-eyes, or trumpets, by which the roving is delivered and guided onto the drawing-rolls ,in spinning-machines; and it consists in the peculiar and novel construction of a weighted lever operated by a heart-shaped cam driven and supported as will be more fully set forth hereinafter.

In spinning-machines the roving is delivered between the drawing-rolls and top rolls through guide-eyes or trumpets supported on a rod called the roving-rod As the top rolls are liable to wear into grooves if the roving is delivered for a considerable time at the' same point, it becomes necessary to change the point at which the roving enters slowly but constantly, and thereby wear the top rolls evenly. To this end it is important to give to the roVing-roda slow reciprocating motion,' so as to change continually the point of wear on both the top and the drawing rolls. In any mechanism for accomplishing th'is reciprocation the' slightest backlash at the ends of the reciprocations will wear grooves near the ends of the top rolls, and in time even into the drawing-rolls, not only injuring these parts u'nnecessarily, but making them useless fo1` successful and practical spinning.

To obviate these difficulties, secure absolutely uniform reciprocation, and uniform wear in these parts, is the object of this invention; and this I accomplish by reciprocating the roVing-rod by means of a bell-crank lever, one arm of which is connected with the roving-rod, one arm is provided with a Weight, and the third arm operated by a heart-shaped cam.

Figure 1 is an end view, partly in section, of the drawing-rolls of a spinning-machine,

showing the device for reciprocatin g the roving-rod. Fig. 2 is a view of the roving-rod, the Operating bell-crank lever, the weight,` and the cam, showing the worm and Wormgear for rotatng the cam. Fig. 3 is a view of the adjustable bracket in which the operating bell-crank lever and the cam are supa ported. Fig. 4 is a plan view of the device showing the cam and worm-gear in section.

Similar numbers of reference indicate corresponding parts in the drawings.

The number 5 indicates the rail or part of the frame of a spinning-machine on which are secured the stands in which the drawingrolls are supported.

6 indicates the standard; 7, the drawingrolls; 8, the front or delivery` roll, and 9 the top rolls. i

10 indicates the roving rod, and 11 the guides or trumpets.

The device forming the subject of this invention is usually placed at the, driving end of the spinning-machine, andis'supported on a bracket made adj ustable so' as to adapt the same for use on spinning-machines in which the height between the rail or platform 5and the roVing-rod differ. The bracket is formed with the base 12, provided with the slot 12', secured by means of a bolt 129 to the railV 5, so that the same can be adjusted t'ransversely. The upright 13 is connected With the base by the curved connection shown in Figi 1, and supports the whole mechanism. To this upright the post 14, having the slot 15 at its lower part and the stud-pin 16 projecting from its upperipart, is secured by the screw 17, the post 14 sliding in suitable ways formed either in the postor in the upright 13, so that when adj usted vertically and secured it forms a rigid support for the heart-shaped cam 18 and the worm-gear 19, formed in one piece with the connecting-sleeve, as is shown in section in Fg. 4. By this Vertical adjustment of the post 14, permitted by the slot 15, the worm-gear 19 can be adj usted to engage with the worm by which the same is driven. The grooved arm 20 extends horizontally from the post 14, and to the same the bracket 21, provided with the slot 22, is secured. The bracket 20 is provided with a slot 209, like the slot :oo

15, and the bracket21 is secured to the bracket by a screw 208 in the same manner as the post 14 is secured to the upright 13. By this means the bracket 21' has capacity for adj nstment transversely to the rolls and rovingrod independentof the transverse ad jnstment of the base 12. The fnlcrnm-pin 23 is adjustably secured to the bracket 21 bya screw passing through the slot 22, and provided with a nut, as is shown in Fig. 4. The bellcrank lever 2a is supported on the fnlcrumpin 23, and the upward extending arm 25 thereof has its upper end slotted so as to receive a pin or stud projecting from the plate 2G, which plate is seoured to the roving-rod 10. The arm 27 of the bell-crank lever, eX- tending horizontally, supports the weight 28, and the arm 29 of the bell-crank lever has the contact-arm 30, the free end of which bears on the heart-shaped cam 18, adjnstably secured to it. The contact-arm 30 is secured by a screw 309 in a grooved way formed on the outside of the arm 29, and the arm 29 is provided with a slot 307, so that the contactarm can' be adjusted on the arm 29. The worm 31 is secured to the shaft 32, the other end of which shaft is secured to the gear 33, and this gear is driven from one of the drawing-roll gears or from any other gear in the driving-head of the spinning-machine.

The device can be readily adjusted to the varying conditions existing in spinning-machines of different builders. The base 12 can be adjusted transversely to the rolls, the post 14, forming the bearin g for the cam and Wormgear, has capacity for Vertical adjustment, the fulcrum-pin for the lever can be adj nsted transversely as well as vertically, and the contact-arm can be adjusted with reference to the Operating-cam.

The operation of the'device is as follows: Rotary motion being in any con venient manner imparted to the worm 31, the worin-gear 19, and with the same the heart-shaped carn 18, receive a slow rotary motion. The bellcrank lever, by reason of the weighted arm 27, is held with the contact-arm bearing on the cam. As the cam is of symmetrical heart Shape, the bell-crank lever will be operated by the heart-cam, so that the arm 25, and with the same the roving-rod, will move continually and uniformly. The roving will therefore be delivered between the drawing and top rolls` by the continuously moving and reciprocating guide-eyes or trumpets, and all parts of the drawing and top rolls will thus be subjected to even wear.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- `1. The combination, with the drawing-rolls and the roving-rod of a spinning-machine, of a bellcrank lever having one arm weighted, one arm connected with the roving-rod, and one arm in contact with a cam, the cam 18, the worm-gear 19, the worm 31, shaft 32, and gear, as described. i

2. The combination, with the drawing-rolls, the top rolls, and the rovin g-rod of a spinningmachine, of a hell-Crank lever pivoted on the fulcrum-pin 23, adj ustably secured to the bracket 21, one arm of the bell-crank lever bein g connected with the roving-rod, one arm in contact with a cam, and one arm having suspended therefrom the weight 28, the cam 18, and the worin-gear 19, the worm 31, shaft 32, gear 33, and the adj ustable support or standard consisting of the transversely-adj ustable base 12, the post 14, provided with the slot 15, the screw 17, and arm 20, as described.

3. The combination, with the rail 5 and the roving-rod of a spinning-machine, of the standard 13, provided with the slotted base 12, the post 14, provided with the slot 15, the screw 17, the stud-pin 1G, the carn 18, and worm-gear 19, the arm 20, provided with. ways and a slot, the bracket 21, having slot 22, and adj nstably secured to the arm 20, a screw extending through the slot for securing the bracket to the arm, the fulcrum-pin 23, secured in the slot 22, the bell-crank lever consisting of the arm 25, connected with' the roving-rod, the arm 27, provided with the weight 28, and the arm 29, the contact-arm 30, secured to the arm 29, the worin 31, the shaft 32, and gear 33, as described.

In witness whereof I have hereunto set my hand.

JOSEPH Ii. POTTER, JR. W'itnesses:

J. A. MILLER, J r., M. F. BLIGH. 

